Hi Gareth: Not sure why one would need to worry about a fuel source when thinking about District heating and cooling systems. Numerous examples exist where ground loop geothermal and solar thermal do a very good job of providing the heat differential necessary to fully support a district system. Many college campuses and commercial districts are active users of these alternate heating and cooling systems. Solar thermal is very good at driving chillers, and supporting a four pipe system that handles both heating and cooling. The challenge we face is the lack of knowledge and basic inertia that prevents a more active uptake of these alternate renewable energy technologies. If one is lucky enough to be located in proximity to a volcanic based geothermal source all the better, but active hot rocks are not widely available. One day as our drilling technology gets better we will be able to sink really deep wells that can take advantage of the energy available deep in the Earth.
What are your thoughts on district thermal energy?
- Nov 10, 2021 11:23 am GMT
Much talk and some action going on regarding so called 5th generation district thermal energy systems, mainly based on heat pumps. At present, the rival seems to be hydrogen, maybe using the existing methane piping net. I would be very interested in any thoughts or comments on this.
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